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public/stylesheets/main.css

@@ -3,3 +3,41 @@
     padding: 20px;
     font-family: Arial, sans-serif;
 }
+
+body {
+    margin: 0;
+    padding: 0;
+    display: flex;
+    justify-content: center;
+    align-items: center;
+    height: 100vh;
+    background: #f2f2f2;
+}
+
+#gameContainer {
+    width: 540px;
+    margin: 0 auto;
+    text-align: center;
+    padding-top: 20px; /* Add some padding at the top */
+}
+
+#themeHeader {
+    margin: 0 0 10px 0; /* Add margin at the bottom */
+    padding: 10px 0;
+    background-color: #f0f0f0;
+    border-bottom: 1px solid #ccc;
+    font-family: Arial, sans-serif;
+    font-size: 18px;
+    color: #333;
+}
+
+#canvasContainer {
+    position: relative;
+    width: 540px;
+    height: 675px;
+}
+
+#gameCanvas {
+    display: block;
+    margin: 0 auto;
+}